Slip 11 - B) Accept radius from the user and write a program having menu with the following options and corresponding actions

Solution:

#include<stdio.h>

void main()

{

    int r,choice;

    float area,c,vol,PI= 3.142;

    printf("\n Enter the radius of circle:- ");

    scanf("%d",&r);

    printf("\n Please make a choice from the following :");

    printf("\n \n Options:\t \t \t \t");

    printf("Actions:");

    printf("\n \n 1. Area of the circle :");

    printf("\t \tCompute area of the circle and print");

    printf("\n \n 2. Circumference of the circle ");

    printf("\tCompute circumference of circle and print");

    printf("\n \n 3. Area of the sphere ");

    printf("\t \t        Compute volume of sphere and print \n \n ");

    scanf("%d",&choice);

    switch(choice)

    {

    case 1:

    area=PI*r*r;

    printf("\n The area of the circle is %f \n \n",area);

    break;

    case 2:

    c=2*PI*r;

    printf("\n The circumference of the circle is %f \n \n",c);

    break;

    case 3:

    vol=(4/3)*PI*r*r;

    printf("\n The volume of the sphere is %f \n \n",vol);

    break;

    default:

    printf("\n You haven made invalid choice \n \n");

    }

} // End of the code